Concrete composition.



COATING OR PLASUC COMPOSITIONS,

UNITED STATES Cross Reference l 3 L PATENT OFFICE.

-'LOUIS LANE,IOF TOLEDO, OHIO."

CONCRETE oomPosrrlon.

Specification of Letters Patent.

Patented Oct. 10, 1906.

Application filed February 17, 1904. Serial No. 194,083-

sition admitting of general use and possess* ifng fiertain specialadvantages hereinafter set ort My concrete composition consists of anaggregate and a cementing material proper, which unite, and therebyproduce a concrete substance having special properties-such asdurability, lightness, strength, uniformity of texture, &c.one specialproperty being the capacity of the substance to receive and re-'tainnails driven therein withoutbreaking or chipping under the blows ofthe hammer.-

My concrete composition may also receive screws or pointed instrumentsof any kind, so that the same may be securely anchored thereto and yetpossess s'uflicient rigidity and strength to make it acceptable for agreat variety of purposes.

Walls may be built of" this concrete composition by pouring or molding,and other structural memberssuch as facings, finishes, or parts attachedto them -may be made of it, and composite structures may be built up byconnecting facings or other parts by means of nails or screws with thebody member of the concrete composition. For this purpose thecomposition requires no special preparatlon, except such as wouldgualify'itfor general use.

open to many objections. Outer walls made or faced with it presentunsightly appearances,

and the substance of ordinary concrete is too brittle to admit of nails,screws, or similar fastenings being anchored into it by driving in likemanner as they would be driven into wood.

By means of my concrete composition facings of terra-cotta, marble,wood, and many other materials may be firmly attached to heavystructural members of almost any kind and may be applied as readily asboards to a wooden house. Window and door trimmings and also insidefinish, floorings, 620., may be readily nailed on without plugging ordrilling or other special preparation and may be given Structures builtup of ordinary concrete arebasic member supporting'the concrete be awooden frame.

If desired, a member may be made of my concrete composition and providedwitha tooth, such that a finish coat of plaster will bond and adhere'without cracking when lathing. It can be applied directly by means ofnails to walls built of my composition, to which rough-castingfinish'can be applied. To fence-posts the wires or boards may be naileddirectly and at any desired point. When my composition is used forrailroad beds or ties, the rails can be spiked directly upon thecomposition at any point desired and with or without suitable cushionsnailed theredirectly to a bed made of my composition without the use ofties or of embedding attachments or anchor-blocks.

My composition possesses great lightness compared with its strength andreadily perm its of shipment in dry mixed state to points where nolocalmaterial is readily obtainable,

My concrete composition is made in four ways, more or less allied, asfollows:

and infusorial earth, the percentage of the Port an cemen per cent. byvolume dry, and consequently the percentage of the infusorial earthbeing not less than fifty per cent, (50%,) and admix the two' substancestogether. This makes avery desirable composition. If the inf usorialearth be more than eighty per cent. (80%) of the entire mass, theconcrete, while penetrable by nails orscrews, is rather weak for-mostpurposes, and I recommend that the proportion of the Portland cement benot less than twenty per cent. (20%) of the entire mass.

e proportion of not more t an typer cent. (50%) of Portland cement, notless than thirty per cent. (30%) of granulated slag, and not more thantwenty per cent. (20%) of infusorial earth by volume dry. A concretethus made is harder than that made by the use of infusorial earth andPortland cement alone.

Third. I take not more than fifty per cent.

as much security as practicable even if the First. I take a quantity ofPortland cementeing not more than fifty Second. I admix ljuflmmewallularsla 'n granulated form, and in usorla earth in 5 Hi Examin applieddirectly'to the wall or metal or wire to. Track-irons for railways canbe fastened (50%) by volume of Portland cement and not less than fiftyper cent. (50%) of cellular slag in granulated form and ad mix the sametogether.

Fourth. I substitute in either of the above 5 mixtures not over ten percent. (10%) of black oxid of man nese (man anese dioxid) for a llECportion of either aggregate.

The cellular slag may be crushed and separated into various granularsizes for different 10 purposes and may be used with or without theso-called dust portion. The slag is prefcrably as free from sulfur aspossible and should be thoroughly dried before mixing and sacking whenintended for storage or ship-. 5 ment.

Having thus described my invention, 1 claim 4 as new and desire tosecure by Letters Patent 1. A penetrable concrete composition containingcellular slag, Portland cement, infusorial earth and manganese dioxid.

2. A concrete composition, consisting of manganese dioxid, ten percent., and ninety per cent. of a mixture of Portland cement, cellularslag and infusorial earth.

3. A concrete composition containing cellular slag in the form ofcomparatively large particles, each of which has a cellular structure,Portland cement, infusorial earth and manganese dioxid.

In testimony whereof I have signed my name to this specification in thepresence of two sub-

